.topnav {
    height: 100px;
    width: 100%
}


.topnav-logo {
    float: left;
    width: 249px;
    height: 60px;
    margin-top: 20px;
}

.topnav-search {
    float: left;
    margin-left: 250px;
    margin-top: 36px;
    width: 563px;
    height: 38px;
    border: 2px solid #dedede;
    box-sizing: border-box;
}

.topnav-search-input input {
    float: left;
    width: 524px;
    height: 34px;
    border: none;
    font-size: 16px;
    color: #999;
}

.topnav-search i {
    float: right;
    width: 35px;
    height: 34px;
    background-color: #3b99fc;
    color: #fff;
    font-size: 20px;
    line-height: 34px;
    text-align: center;
}

.topnav-right {
    float: left;
    margin-left: 216px;
    margin-top: 48px;

}

.topnav-right .wenzi span {
    font-size: 16px;
    color: #70b3fb;
}





.topnav-right .font {
    margin-left: 84px;
    margin-top: -20px;
    color: #3b99fc;
}

.topnav-right .font2 {
    margin-left: 106px;
    margin-top: -17px;
    color: #3b99fc;
}

.topnav-right .zui {
    margin-left: 128px;
    margin-top: -17px;
    font-size: 14px;
}


/* 头部 */
.header {
    height: 50px;
    background-color: #3b99fc;
}

.header .first {
    float: left;
    width: 181px;
    height: 50px;
    background-color: #2676e3;
    color: #fff;
    font-size: 18px;
    font-weight: normal;
    text-align: center;
    line-height: 50px;
}



.header .gege {
    float: left;
    width: 181px;
    height: 50px;
    color: #fff;
    font-size: 18px;
    font-weight: normal;
    text-align: center;
    line-height: 50px;
}

.header .gege:hover {
    background-color: rgb(54, 133, 236);
}



/* 3.内容 */

.middle-top {
    height: 60px;
    width: 100%;
}

.middle-top span {
    font-size: 16px;
    line-height: 60px;
}

.middle-top s {
    color: #3b99fc;
}



.middle-bottom {
    height: 2035px;
    width: 100%;
    border: 2px solid #dedede;
}

.middle-bottom h2 {
    font-size: 25px;
    text-align: center;
    margin-top: 30px;
    margin-bottom: 25px;
}

.middle-bottom .article p {
    font-size: 18px;
    margin-left: 115px;
    line-height: 40px;
}

.middle-bottom .article .one {
    float: left;
    font-size: 20px;
    font-weight: 300;
    text-align: center;
    width: 520px;
    margin-left: 154px;
}


.middle-bottom .article .two {
    float: left;
    font-size: 20px;
    font-weight: 300;
    text-align: center;
    width: 520px;
    margin-left: 150px;
}


/* 4.底部 */
.footer {
    background-color: #f8f8f8;
    height: 245px;
}

.footer-left {
    float: left;
    width: 621px;
    height: 245px;
}

.footer .footer-left .footer-left-top h2 {
    font-size: 18px;
    font-weight: 300;
    color: #333;
    margin-left: 68px;
    margin-top: 47px;
    margin-bottom: 26px;
}

.footer-left-bottom {
    margin-left: 68px;
}

.footer .footer-left .footer-left-bottom img {
    width: 248px;
    height: 40px;
    margin-right: 12px;
    margin-bottom: 12px;

}



.footer-right {
    float: right;
    width: 865px;
    height: 245px;


}

.footer-right .footer-right-top {
    float: left;
    margin-top: 47px;
    height: 40px;
    width: 100%;
    color: #333;
}

.footer-right .footer-right-top span {
    font-size: 16px;
    margin-top: 25px;

}

.footer-right .footer-right-top .one {
    margin-left: 9px;
}

.footer-right .footer-right-top .two {
    margin-left: 21px;
}

.footer-right .footer-right-top .three {
    margin-left: 38px;
}

.footer-right .footer-right-top .four {
    margin-left: 65px;
}

.footer-right .footer-right-bottom img {
    float: left;
    width: 100px;
    height: 100px;
}


.footer-right .footer-right-bottom .one {
    margin-left: 19px;
}

.footer-right .footer-right-bottom .two {
    margin-left: 56px;
}

.footer-right .footer-right-bottom .three {
    margin-left: 56px;
}

.footer-right .footer-right-bottom .four {
    margin-left: 56px;
}

.footer-right .zui {
    float: right;
    width: 230px;
    height: 100px;
    background-color: #fff;
    margin-left: 20px;
    border: 2px solid #e6e6e6;
    box-sizing: border-box;
    /* border */
    
}

.footer-right .zui p {
    font-size: 14px;
    margin-top: 20px;
    margin-left: 20px;
    line-height: 20px;
}


/* 5.底部商标 */
.brand {
    background-color: #666;
    height: 100px;
    color: #c1c1c1;
    /* overflow: hidden; */


}

.brand .middle {
    font-size: 16px;
    text-align: center;
    line-height: 40px;
    margin-top: 22px;
}